forked from Minki/linux
[TCP]: SACK fastpath did override adjusted fackets_out
Do same adjustment to SACK fastpath counters provided that they're valid. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
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d041005116
@ -699,6 +699,14 @@ int tcp_fragment(struct sock *sk, struct sk_buff *skb, u32 len, unsigned int mss
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tp->fackets_out -= diff;
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if ((int)tp->fackets_out < 0)
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tp->fackets_out = 0;
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/* SACK fastpath might overwrite it unless dealt with */
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if (tp->fastpath_skb_hint != NULL &&
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after(TCP_SKB_CB(tp->fastpath_skb_hint)->seq,
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TCP_SKB_CB(skb)->seq)) {
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tp->fastpath_cnt_hint -= diff;
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if ((int)tp->fastpath_cnt_hint < 0)
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tp->fastpath_cnt_hint = 0;
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}
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}
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}
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